Use of Formulas. Formula Usage. Formula Example

Transcription

1 Formula Usage, page 1 Formula Example, page 1 Variables, page 2 Operators, page 11 Built-in functions, page 14 Custom Functions, page 19 Dynamic Formula, page 21 Formula Usage A formula consists of one or more expressions that the Unified ICM evaluates to produce a value that it can use for subsequent script processing. You define expressions made up of variables, constants, operators, and functions as part of custom selection rules or distribution criteria in scripts. (See Variable Usage, on page 2, Selection of Targets by Rules, and Distribute Contacts to Targets.) Formula Example Following is a simple example of a formula: CallerEnteredDigits == 1 In this example: The Left-value, CallerEnteredDigits, is a variable. More specifically, it is a call control variable. The operator is the "Equal To" equality operator. The Right-value is the number 1. If the value of CallerEnteredDigits is 1, the formula returns true; otherwise, the formula returns false. 1

2 Variables Variables Variable Usage A variable is a named object that holds a value. You use variables in formulas to select targets and help in call tracking. Variable Syntax Following is the syntax for using a variable in a formula: object-type.object-name.variable-name Where: The object-type is an object category, such as Service. The object-name is the name of an object contained in Unified ICM database, such as the name of a service (for example, BosSales). The variable-name is the name of an object that can hold a value, such as a call control variable (for example, (CallerEnteredDigits). Each component in the variable is separated by a period (.). Passing of internationalized characters through Media Routing interface is not supported. The application that interacts with ICM through the Media Routing interface must send any call related data in English only. Single-Target Variables A single-target variable examines data for one specified routing target. For example, the variable: Service.BosSales.ExpectedDelay: Examines the expected delay for the BosSales service. Multiple-Target Variables A multiple-target variable examines data across multiple routing targets. For example, the function: Max(SkillGroup.*.LongestAvailable): Finds the skill group, from all skill groups defined in the target set for the script node that calls the function, with the longest available agent. You use an asterisk (*) as the object-name value to indicate that the variable is to examine data across multiple targets. 2

3 Call Control Variables Call Control Variables Call control variables provide information about the current contact that is being routed by the script. Call control variables include information about where the route request came from, contact classification data, and data to be passed to the peripheral that receives the contact. Variable Data Type Description Can be Set by the User CallerEnteredDigits Digits caller entered in response to prompts. Yes CallingLineID Billing telephone number of the caller. CLIDRestricted If 1, CLID presentation should be restricted. If 0, CLID presentation should not be restricted. Set in Unified ICM Configuration Manager. Open Tools > Miscellaneous Tools > System Information. Check Enabled in the CLID Masking section of the screen to turn on. CustomerProvidedDigits Digits to be passed to the routing client for forwarding to the call recipient. Yes DialedNumber Telephone number dialed by the caller. ExpCallVarName Expanded Call Context (ECC) variable value assigned in scripts and passed with contact. Yes NetworkTransferEnabled If 1, network transfer is enabled. If 0, network transfer is not enabled. Yes PeripheralVariable1- PeripheralVariable10 Values passed to and from the peripheral. Yes RequeryStatus Provides the ability to test the error path of the Label, Queue, RouteSelect, and Select nodes to determine the specific network cause of failure and conditionally retry the attempt as necessary. RouterCallDay An encoded value that indicates the date on which Unified ICM processes the call.

4 Call Control Variables Variable RouterCallKey Data Type Description A value that is unique among all calls Unified ICM has processed since midnight. RouterCallDay and RouterCallKey combine to form a unique call identifier. Can be Set by the User RoutingClient The name of the routing client that made the route request. TimeInQueue Number of seconds a call has been queued. UserToUserInfo ISDN private network User to User information Yes VruStatus Indicates the result of a previous VRU node. CallGUID varchar (2) Globally unique call identifier. LocationParamName varchar(50) Location name. PstnTrunkGroupID varchar(2) The Trunk Group ID on which the call arrived on IOS Gateway. PstnTrunkGroupChannelNumber The Trunk Group Channel Number on which the call arrived on IOS Gateway. SIPHeader varchar(255) Specific header information extracted from a SIP call that arrives at Unified CVP (or VRU). Yes For a Post-Routing request from an Aspect ACD, PeripheralVariable1 through PeripheralVariable5 map to the Aspect variables A through E. The Aspect routing client passes these variables to the Unified ICM as part of the request and the Unified ICM returns them with the response. Other routing clients might use some of these variables for other purposes. The values of these variables are also stored in the Route_Call_Detail table of the database. 4

5 Expanded Call Context (ECC) Variables The Call Variables can be used in a "SET" node in an Admin Script as temporary placeholders for complex calculation. However, because any call context is only existent as long as the call itself, the Variables cease to exist after the Route Request (a.k.a Call) is complete (be it by virtue of a successful Routing Script Execute Completion or an Administrative Script Execute Completion). They cannot be used to store values, so as to be re-used in Routing Scripts, as the Routing Scripts themselves will have a new set of CallVariables created for the Route Request. When comparing two Call Variables of Numeric string, you must use the Built-In Function "value()" in the IF de to perform Numeric comparison, otherwise there is a comparison. Example: value(call.peripheralvariable1)>=value(call.peripheralvariable2) where Call.PeripheralVariable1 and Call.PeripheralVariable2 are given as Numeric string. Expanded Call Context (ECC) Variables Expanded call context (ECC) variables store values associated with the contact. ECC values are written to Termination Call Detail records only if, and when, an ECC value is explicitly set, which can be done any numbers of ways, such as using a script, a VRU,, a NIC, CTI, and so on. This applies to null values as well as non-null values. If an ECC variable is defined, but never assigned a value, it does not have a row in the Termination Call Variable table when a Termination Call Detail record is written. The Latin 1 Character set for expanded call context variables and peripheral call variables is supported when used with Unified CVP, Cisco Finesse, and Cisco Social Miner, among others. The use of multi-byte character sets in limited usage for ECC and peripheral call variables is also supported, when: setting them in script editor using double quotes stored in Termination Call Variables with appropriate SQL collation setting and receiving them through CTI OS desktops. Generally speaking, ECC values are passed from leg to leg on the call. After a value is assigned, the value is recorded in the Termination Call Variable for every Termination Call Detail Segment. However, this depends on how each new call segment is created. If it does not involve translation routes or the Unified CCE, and is outside the original peripheral, ECC variables, like all call variables, cannot be propagated. The Unified ICM is delivered with some ECC variables, and you can create others through Unified ICM Configuration Manager. For more information, see the Configuration Guide for Cisco Unified ICM/Contact Center Enterprise at unified-contact-center-enterprise/products-installation-and-configuration-guides-list.html. Persistent vs. n-persistent Call Variables When the Unified CCE/Unified CCH or Unified ICM writes call data records to its historical database, it can store the values of all call variables. Storing excessive call variable data can degrade historical database 5

6 Expanded Call Context Variables for Web Callback performance. When you define a call variable (in Unified ICM Configuration Manager), you can tag it as either persistent or non-persistent. Only persistent call variables are written to the historical database. You can use non-persistent variables in routing scripts, but they are not written to the database. Expanded Call Context Variables for Web Callback You must create two ECC variables if you intend to use Enterprise Chat and and/or Voice Media Routing Domains to route Delayed Callback requests. The ECC variables are: user.cisco.cmb - Specified by the peripheral.namedvars property, enabling web callback requests to be routed through Unified ICM. user.cisco.cmb.callclass - Specified by the peripheral.namedvars property, used to send the call class by way of the pre-call message. - used to send the CIM activity ID to Unified ICM. user.ewm.customer.name - used to pass the customer name from the entry point to Unified ICM. Warning Do not overwrite reserved ECC variables in a script. Overwriting these variables may cause the application to route tasks to agents in an incorrect manner. For more information about configuring ECC variables, see the Configuration Guide for Cisco Unified ICM/Contact Center Enterprise. User Variables User variables are variables you create to serve as temporary storage for values you can test with an If node. For example, you could create a user variable called usertemp to serve as a temporary storage area for a string value used by an If node. You create user variables through the Unified ICM Configuration Manager. For more information, see Configuration Guide for Cisco Unified ICM/Contact Center Enterprise. Each user variable must: Have a name that begins with user. Be associated with an object type, for example, service. (This enables the Unified ICM to maintain an instance of that variable for each object of that type in the system.) Be identified as a persistent (retains value across CallRouter restarts) or non-persistent (does not retain value across CallRouter restarts) variable. Store a value up to 40 characters long. After you have define a variable, you can use the Formula Editor to access the variable and reference it in expressions, just as you would with a built-in variable. 6

7 Set Variable de Usage Set Variable de Usage Figure 1: Set Properties Window You can set the value of a variable with the Set Variable node: Object type - Choose the type of object the variable is associated with. Object - Choose the specific object the variable is associated with. If you choose Call as the Object Type, this field does not apply. Variable - The specific variable you want to set. The variables that are available are determined by the value you choose in the Object Type field. Define all integer fields in tables accessed by a Set Variables node as NOT NULL. Array index - Enter an integer or an expression that evaluates to an integer. For example, if the Array Index expression evaluates to 2, then the Set Variable node sets the second element of the variable array. This field is only available if you select an array variable in the Variable field. Value - Enter the value to assign to the variable. The value can be: A constant 7

8 SkillGroup.Avail and SkillGroup.ICMAvailable Variables A reference to another variable An expression SkillGroup.Avail and SkillGroup.ICMAvailable Variables When the Unified ICM system includes only the voice channel, the value of the SkillGroup.Avail variable is the number of agents in the available state, meaning that the agents are able to accept new calls. However, when the web or channel is used with non-voice Media Routing Domains and agents log in to multiple domains, the value of the SkillGroup.Avail variable is calculated differently. There is also a SkillGroup.ICMAvail variable. The following table describes the difference between the SkillGroup.Avail and the SkillGroup.ICMAvail variables: Case Only voice domain is used Multiple Domains are used SkillGroup.Avail Number of agents in the Available state. Number of agents in the Available state, regardless of what they may be doing in this or other domains. SkillGroup.ICMAvailable Same Number of agents who can actually handle an additional task or call in the domain. SkillGroup.ICMAvailable Variable The value of the SkillGroup.ICMAvailable variable is the actual number of agents logged in to the skill group who can take new calls or tasks. Such agents must meet all the following criteria: 1 They are routable in the domain. 2 The agent's state in the domain is something other than "t-ready". The agent is below the maximum task limit. For most domains (that is, if the agent is not a Enterprise Chat and Multi-session agent), the maximum task limit is 1, and an agent is below the maximum only when the agent is not working on any call or task. 4 The agent is not working on another task in a non-interruptible domain. SkillGroup.Avail Variable SkillGroup.Avail is the number of agents in the skill group who are not doing anything in the domain. An agent who is logged in to two domains can be counted as Avail in one domain even though that agent is handling a task in another non-interruptible domain. An agent in a domain that handles multiple tasks (such 8

9 SkillGroup.Avail Variable as chat) is not counted as Avail if that agent is handling a task, even though the agent has additional capacity for more tasks. The following table shows some possible values for these variables. Assume three agents are logged in to a voice skill group, and the same three agents are also logged in to another non-interruptible domain, such as a chat domain. This table shows the voice skill group states and the number of agents available in that state. Case Initial state First agent handles a call Second agent handles a chat session Voice call ends Chat ends SkillGroup.Avail 2 2 (because there are two agents doing nothing in the domain) SkillGroup.ICMAvailable 2 1 (because there is only one agent left to handle voice calls) 2 If a routing script needs to check the number of available agents, using SkillGroup.Avail produces better results as it uses an extrapolation mechanism in determining the available agent. Following is another example showing agents handling non-interruptible chat tasks. Assume three agents are logged in to a chat skill group, each allowed to handle two chats. This table shows states for the chat skill group. Case SkillGroup.Avail SkillGroup.TalkingIn SkillGroup.ICMAvailable Initial state 0 First agent handles a chat session 2 (because the agent is now in the talking state) 1 (because all three agents can still handle additional chats) Second agent handles a chat session 1 2 Third agent handles a chat session 0 First agent handles second chat session 0 (even though a total of 4 chats are in progress, only agents are doing the work) 2 (because only the second and third agents can handle an additional chat) By default, Script Editor shows the ICMAvailable value instead of Avail value when displaying skill group real-time data. 9

10 Closed Variables Closed Variables Closed variables are available for use for skill groups, peripherals, and Media Routing Domains. Closed variables allow administration scripts to turn dequeuing to these objects on and off. The Closed variables default to 0, meaning that the object is open. A script (usually an administration script) can change the state of the Closed variables. If a Closed flag is set to a non-zero integer, then calls are not dequeued to affected agents, regardless of their state. When closed variables are set to zero, the queued calls do not go to the available agents immediately, and continue to be in the queue. When the agent state changes from "t Ready" to "Ready" state, the new calls are sent to the available agents (agents in the "Ready" state) only, and not the queued calls. Operator Precedence The following table shows the order in which operators are evaluated. The operators with priority 1 are evaluated first, then those with priority 2, and so on. The order of evaluation within each priority level can also be important. Prefix operators are evaluated from right-to-left in an expression. Assignment operators are also evaluated from right-to-left. In all other cases where operators have equal priority, they are evaluated left-to-right. Priority Operator type Prefix (unary) Multiplication and division Addition and subtraction Shift right and shift left Relational Equality Bitwise And Bitwise exclusive Or Bitwise inclusive Or And Or Conditional Operators + -! ~ * / + - >> << < > <= >= ==!= & ^ &&? 10

11 Operators Priority 1 Operator type Sequential Operators, Operators Prefix Operators The Prefix Operators in the following table take a single operand: Operator + -! ~ Meaning Positive Negative Logical negation One's complement Comments/Examples Numeric values are positive by default, so the positive operator (+) is optional. Example: 2 and +2 represent the same value. The negative operator (-) changes the sign of a value. Example: 2 represents a positive value; -2 represents a negative value. A logical expression is any expression that evaluates to true or false. The logical negation operator (!) changes the value of a logical expression. : Numerically, a false value equates to 0 and a true value equates to a non-zero value. Example: If the current value of SkillGroup.Sales.Avail is, then SkillGroup.Sales.Avail > 0 is true and (SkillGroup.Sales.Avail > 0) is false. Operates on a bit value, changing each 1 bit to 0 and each 0 bit to 1. : This operator is rarely used. Arithmetic Operators The Arithmetic Operators in the following table take two operands: 11

12 Equality Operators Operator * / + - Meaning Multiplication Division Addition Subtraction Comments/Examples Arithmetic operators perform the basic operations of addition, subtraction, multiplication and division. You can use them in making calculations for a skill group, service, or route. : Multiplication (*) and division (/) operators are evaluated before addition (+) and subtraction (-) operators. Equality Operators The Equality Operators in the following table take two operands: Operator ==!= Meaning Equal to t Equal To Comments/Examples Equality operators allow you to determine whether two values are equivalent or not. Relational Operators The Relational Operators in the following table take two operands: Operator > < >= <= Meaning Greater than Less than Greater Than or Equal To Less Than or Equal To Comments/Examples Relational operators allow you to perform a more sophisticated comparison than the equality operators. Logical Operators The Logical Operators in the following table take two operands. Logical operators examine the values of different logical expressions: 12

13 Bitwise Operators Operator && Meaning And Or Comments/Examples The expression is true if both of the operands are true. If either is false, the overall expression is false. The expression is true if either or both of the operands is true. If both are false, the overall expression is false. The equality (==) and relational (>) operators are evaluated before the logical operators (&& and ). Bitwise Operators The Bitwise Operators in the following table take two operands. Operator & ^ Meaning And Inclusive Or Exclusive Or Comments/Examples The & Bitwise Operator turns specific bits in a value on or off. Inclusive Or and Exclusive Or differ in the way they handle the case where bits in both values are 1: Inclusive Or evaluates the result as true and sets a 1 bit in the result. Exclusive Or evaluates the result as false and sets a 0 bit in the result. (An Exclusive Or applies the rule "one or the other, but not both"). Miscellaneous Operators The following table lists miscellaneous operators: 1

14 Built-in functions Operator? &, << >> Meaning Conditional Concatenation Sequential Shift left Shift right Comments/Examples The conditional operator (?) takes three operands and its syntax is as follows: The Unified ICM evaluates the expression by first examining the logical expression condition and then tests the following condition: If the result is true, then the overall expression evaluates to the value of the expression true-result. If the result is false, then the overall expression evaluates to the expression false-result. The concatenation operator (&) joins two strings end-to-end. returns the value. The sequential or comma operator (,) takes two operands, each of which is an expression. Unified ICM evaluates the left expression first and then the right expression. The value of the overall expression is the value of the right expression. The first expression typically affects the valuation of the second. The shift left (<<) and shift right (>>) operators shift the bits within a value. Built-in functions Date and Time Functions The following table lists the built-in date and time functions: 14

15 Date and Time Functions Function date [ (date) ] day [ (date) ] hour [ (time) ] minute [ (time) ] month [ (date) ] Data Type Return Value/Example Returns the current system date or the date portion of a given date-time value. The given date can be a floating point value (as returned by the now function), a string of the form mm/dd/yy, or three integers: yyyy, mm, dd. date (with no arguments) returns the current date. For example, = date (2001, 7, 15) tests whether the current date is July 15, Do not use the slash (/) character in defining a date function. Because it is the division operator, the function would not return the results you are looking for. You can enclose the argument within a string. Returns the day of month (1-1) for the current date or a given date. The given date must be an integer or a floating-point value, as returned by the date or now function. Returns the hour (0-2) of the current time or a given time. The given time must be a floating-point value, as returned by the now function. Returns the minutes (0-59) of the current time or a given time. The given time must be a floating-point value as returned by the time function. Returns the month (1-12) of the current month or a given date. The given date must be a floating-point value, as returned by the date or now function. 15

16 Mathematical Functions Function now second [ (time) ] time [ (time) ] weekday [ (date) ] year [ (date) ] Data Type Float Float And Return Value/Example Returns the current date and time, with the date represented as an integer and the time represented as a fraction. : You can use the date or time functions without any arguments to return just the current date or time. This function is useful for comparing the current date and time to a specific point in time. Returns the seconds (0-59) of the current time or a given time. The given time must be a floating-point value, as returned by the time function. Returns the current system time or the time portion of a date-time value. The given time can be a floating point value, a string of the form hh:mm:ss, or two or three numeric values: hh, mm [, ss ]. (with no arguments) returns the current time. Returns the current day of week (Sunday=1, Monday=2, etc.) of the current date or given date. The given date must be an integer or floating-point value, as returned by the date or now function. Returns the year of the current year or given date. The given date must be a floating-point value, as returned by the date or now function. Mathematical Functions The following table lists the built-in mathematical functions: Function abs(n) Data Type Floating Point or Return Value/Example Returns the absolute value of n (the number with no sign). 16

17 Miscellaneous Functions Function max(n1, n2 [,n]...) min(n1, n2 [,n]...) mod(n1,n2) random() sqrt(n) trunc(n) Data Type Floating Point or Floating Point or Floating Point or Floating Point or Floating Point or Return Value/Example Returns the largest of the operands. Each operand must be numeric. Returns the smallest of the operands. Each operand must be numeric. Returns the integer remainder of n1 divided by n2. Returns a random value between 0 and 1. Returns the square root of n. (The operand n must be numeric and non-negative). Returns the value of n truncated to an integer. Miscellaneous Functions The following table lists the built-in miscellaneous functions: Function after(string1,string2) before(string1,string2) ClidInRegion Data Type Logical Return Value/Example That portion of string2 following the first occurrence of string1. If string1 does not occur in string2, the null string is returned. If string1 is the null string, string2 is returned. That portion of string2 that precedes the first occurrence of string1. If string1 does not occur in string2, string2 is returned. If string1 is the null string, the null string is returned. Indicates whether the CLID for the current contact is in the geographical region specified by string. The value string must be the name of a defined region. You can use the Name variable of a region to avoid entering a literal value. 17

18 Miscellaneous Functions Function concatenate(string1,string2,...) EstimatedWaitTime find(string1, string2 [,index ]) if(condition,true-value,false-value) left(string,n) len(string) Data Type Logical Return Value/Example Returns the concatenation of the arguments. The function takes up to eight arguments. Returns the minimum estimated wait time for each of the queues against which the call is queued (skill group(s) or precision queue(s)). Queue to Agent(s) is not supported. If no data is available, returns -1. The estimated wait time is calculated once, when the call enters the queue. The default estimated wait time algorithm is based on a running five minute window of the rate of calls leaving the queue. Any calls which are routed or abandoned during the previous 5 minutes are taken into account as part of the rate leaving queue. For precision queues, the rate leaving queue represents the rate at which calls are delivered or abandoned from the entire precision queue, not any individual precision queue steps. Returns the starting location of string1 within string2. If you specify an index value, searching starts with the specified character of string2. Returns a value of true-value if the condition is true; false-value if the condition is false. Returns the current hour in 12-hour format rather than 24-hour format. Returns left-most n characters of string. Returns the number of characters in string. 18

19 Custom Functions Function mid(string,start,length) result right(string,n) substr(string,start [, length ]) text(n) valid(variable) ValidValue(variable,value) value(string) Data Type Floating Point or Logical Floating Point or Return Value/Example Returns a substring of string beginning with the start character and continuing for length characters. Returns the result of the current Select node. (This function is valid only in a Select node.) If you are using the LAA rule in the Select node, result returns the number of seconds the selected agent has been available. Returns right-most n characters of string. Returns a substring of string beginning with start character and continuing for length characters. Converts a numeric value to a string. Returns whether variable has a valid value. If variable has a valid value, returns that value; otherwise, returns "value". Returns either a name from the database or the string value ne. Converts a string to a numeric value. Custom Functions Custom functions are those functions you create for use within scripts, as opposed to built-in functions. 19

20 Add Custom Functions Add Custom Functions Procedure Step 1 Step 2 Step Step 4 Step 5 Step 6 Step 7 Step 8 In Script Editor, from the Script menu, choose Custom Functions. The Custom Functions dialog box opens, listing all the custom functions currently defined. Click Add to open the Add Custom Function dialog box. Specify the following: a) Function name. All custom function names must begin with user. b) Number of Parameters. The number of parameters to be passed to the function. A function may take 0, 1, or more parameters. c) Function definition. The expression to be evaluated when the function is called. When entering the function definition, keep the following in mind: The parameters to a function are numbered beginning with 1. To reference a parameter within the expression, surround it with percent signs (%). For example, %% is a reference to the third parameter. The lower portion of the dialog box is just like the Formula Editor. You can use it to help build the expression. When finished, click Test. The Test Function dialog box opens. Test the function by entering an example of how you might reference the function. Include a specific value for each parameter. Click Evaluate to see how the Script Editor interprets the function call and click Close to return to the Add Custom Function dialog box. Use one of the Validate buttons to validate the scripts that reference a selection function. (The Validate All button lets you validate all the scripts that reference any custom function.) When finished, click OK to apply changes and to close the dialog box. Import Custom Functions Procedure Step 1 Step 2 Step Step 4 In Script Editor, from the Script menu, choose Custom Functions. The Custom Functions dialog box opens, listing all the custom functions currently defined. Click Import. The Import Custom Function dialog box opens. Choose a file name with an ICMF extension (.ICMF) and click Open. The Script Editor examines the file for naming conflicts. If a conflict is found, a dialog box appears listing options for resolving the conflict. Choose one of the options and click OK. If you choose to rename the function, the new name must begin with user. 20

21 Export Custom Functions The Script Editor performs automapping and the following happens: If all imported objects were successfully auto-mapped, a message window appears prompting you to review the mappings. Click OK to access the Object Mapping dialog box. If some imported objects were not successfully auto-mapped, the Object Mapping dialog box appears, with all unmapped objects labeled Unmapped. The Object Mapping dialog box contains three columns: Object Types. The type of imported objects. Imported Object. Name of imported object. Mapped To. What this imported object will be mapped to. (Optional.) Click an Imported Object value. The Mapped To column displays all the valid objects on the target system. (Optional.) Choose an object from the Mapped To columns drop-down list on the target system that you want to map the imported object to. Multiple objects may be mapped to the same target. Objects may be left unmapped; however, the resulting custom function are not valid until all objects are mapped. When the mapping is complete, click Apply and Finish. Export Custom Functions Procedure Step 1 Step 2 Step Step 4 Step 5 In Script Editor, from the Script menu, choose Custom Functions. The Custom Functions dialog box opens, listing all the custom functions currently defined. Choose the custom function(s) from the list and click Export. The Export Custom Function dialog box opens. If you selected a single function, that functions name appears in the File Name field. If you selected more than one function, the File Name field is blank. (Optional.) Change the File Name. You cannot change the file type; you can save the script only in.icmf format. Click Save. If the file name already exists, the system prompts you to confirm the save. If prompted, click OK. The custom function(s) are saved to the specified file in text format. Dynamic Formula You can pass the PQ name or ID dynamically while creating a formula in the IF node. Whenever a call encounters the IF node after you create a formula, the router evaluates the formula based on the PQ name or 21

22 Dynamic Formula ID that is given in the Peripheral or ECC variable. This feature is implemented to check the real time statistics of the PQ before the call is queued to that PQ. For example: Consider a formula PQ.{Call.PeripheralVariable1}.LoggedOn > 0. In this formula, {Call.PeripheralVariable1} is the variable that picks the PQ based on the PQ Name or ID dynamically. When a call comes in, the router evaluates the formula and determines the numbers of agents that are logged in the particular PQ that is given in the Peripheral or ECC variable. After the formula is evaluated, and if an agent is logged in, the call is routed to the agent. Only Peripheral Variables and User defined ECC Variables are allowed within the curly brackets of a Dynamic Expression. Procedure Step 1 Step 2 Step Place an If object in the workspace; right-click to open the Properties dialog box. Click Formula Editor. Select the Variables tab, and in the Object types list, select PQ. The variables that can be selected for the object are listed. Step 4 In the Objects list, select {}. The variables that can be selected for the object are listed. Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 1 From the Variables list, select the variable that you want to include in the formula. Click Paste to view the selected elements in the Formula box. To add a Peripheral or an ECC variable, place the cursor inside the curly brackets. The options in the Object types and Variables lists change. In the Object types list, select Call In the Variables list, select the variable that you want to include in the formula. Optional: Add a relational operator to complete the expression Click OK to close the Formula Editor dialog box. Click OK to close the IF Properties dialog box. Click Save. 22